Project Rhea for MA 375 Fall 2008 Professor Walther
If you look under MediaWiki FAQ, you get lots of instructions how to work with Rhea. Some important things are under item 4 in that manual.
If you want to do things like $ \sum_{i=1}^\infty 1/i^2 = \frac{\pi^2}{6} $ here then you should look a) at the "view source" button on this page and b) get acquainted with Latex [1], a text-formatting program designed to write math stuff.